APA ציטוט

Rosero Bixby, L. (2008). The exceptionally high life expectancy of Costa Rican nonagenarians.

Citación estilo Chicago

Rosero Bixby, Luis. The Exceptionally High Life Expectancy of Costa Rican Nonagenarians. 2008.

ציטוט MLA

Rosero Bixby, Luis. The Exceptionally High Life Expectancy of Costa Rican Nonagenarians. 2008.